Let the Japanese Coast Guard and the USN do their jobs
Looking at the marine track data and the damage pictures,
Theres at least a plausible case that the Cargo Ship pulled an erratic course change and ran down the Navy Ship by overtaking her and steering into her starboard side
No one has heard peep from the cargo ship owners and crew
This scenario still,leaves the USN culpable for not maintaining situational awareness, not maintaining adequate watch and not taking evasive actions to avoid the collision
Please ping me when you find out. It may be months from now.